Computer Science (AS & A Level) · Oct / Nov 2024 · Paper 22 · Question 2
9618
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The question as text
A program is being developed to process bank card information. When a card number is displayed, all the characters except the last four are replaced with the asterisk character '*'. Card numbers are stored as strings. The strings are between 10 and 20 characters in length. The function Conceal() will take a string representing a card number and return a modified string. Example strings: Original string Modified string "1234567890" "******7890" "1234567897652" "*********7652" "1234567890123456" "************3456"
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2(a)[6]
2(b)(i)[2]
2(b)(ii)[1]
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